IUCN Red List Criteria
| Critically Endangered |
|
| Endangered |
|
| Vulnerable |
A2bcd+3bcd+4bcd |
IUCN Red List history
| Year |
Category |
| 2012 |
Vulnerable |
| 2008 |
Vulnerable |
| 2006 |
Vulnerable |
| 2004 |
Vulnerable |
| 2000 |
Vulnerable |
| 1994 |
Lower Risk/Near Threatened |
| 1988 |
Lower Risk/Least Concern |
Species attributes
| Migratory status |
not a migrant |
Forest dependency |
Low |
| Land mass type |
shelf island
shelf island
|
Average mass |
- |
Distribution
| |
Estimate |
Data quality |
| Extent of Occurrence breeding/resident (km2) |
281,000 |
medium |
| Number of locations |
11-100 |
- |
| Fragmentation |
|
- |
Population & trend
| |
Estimate |
Data quality |
Derivation |
Year of estimate |
| No. of mature individuals |
3300-6700 |
medium |
Estimated |
2005 |
| Population trend |
Decreasing |
good |
|
- |
| Number of subpopulations |
2-100 |
- |
- |
- |
| Largest subpopulation |
1001-1000000 |
- |
- |
- |
| Generation length (yrs) |
6.6 |
- |
- |
- |
|
Population justification: A total of 4,632 individuals were counted in the Asian Waterbird Census in 2004, and 4,428 in 2005 (D. Li in litt. 2005). The total population is likely to fall between 5,000-10,000 individuals, roughly equating to 3,300-6,700 mature individuals. |
|
Trend justification: A steep population decline was evident by the mid-1970s, with high numbers recorded at only a few sites in the following decade. Subsequent local extinctions and near-disappearances have occurred in several significant sites, owing to exceptionally high levels of hunting and trapping, conversion of natural wetlands, mangrove destruction and the recent extensive use of pesticides on rice-fields. This species's population is suspected to be undergoing a rapid and continuing decline in line with these impacts. |
Country/Territory distribution
| Country/Territory |
Occurrence status |
Extinct |
Breeding |
Non-breeding |
Passage |
| Japan |
Vagrant |
No |
|
Yes |
|
| Philippines |
Native |
No |
Yes |
|
|
| Taiwan (China) |
Vagrant |
No |
|
Yes |
|
Important Bird Areas where this species has triggered the IBA criteria
| Country/Territory |
IBA Name |
IBA link |
| Philippines |
Agusan Marsh Wildlife Sanctuary |
 |
| Philippines |
Aurora Memorial National Park |
|
| Philippines |
Bataan Natural Park and Subic Bay Forest Reserve |
|
| Philippines |
Bislig |
|
| Philippines |
Buguey wetlands |
|
| Philippines |
Bulusan Volcano Natural Park |
|
| Philippines |
Candaba swamp |
|
| Philippines |
Catanduanes Watershed Forest Reserve |
|
| Philippines |
Central Panay mountains |
|
| Philippines |
Cuernos de Negros |
|
| Philippines |
Iglit - Baco Mountains |
|
| Philippines |
Lake Lanao |
|
| Philippines |
Lake Naujan National Park |
|
| Philippines |
Lalaguna marsh |
|
| Philippines |
Manila Bay |
|
| Philippines |
Marinduque Wildlife Sanctuary |
|
| Philippines |
Mount Apo Natural Park |
|
| Philippines |
Mount Guiting-guiting Natural Park |
|
| Philippines |
Mount Hitding |
|
| Philippines |
Mount Kitanglad Range Natural Park |
|
| Philippines |
Mount Mantalingahan |
|
| Philippines |
Mount Siburan |
|
| Philippines |
Mounts Palay-Palay-Mataas Na Gulod National Park |
|
| Philippines |
Olango Island |
|
| Philippines |
Pagbilao and Tayabas Bay |
|
| Philippines |
Peñablanca Protected Landscape and Seascape |
|
| Philippines |
Polillo Islands |
|
| Philippines |
Rajah Sikatuna Protected Landscape |
|
Habitats & altitude
| Habitat (level 1) |
Habitat (level 2) |
Importance |
Occurrence |
| Forest |
Subtropical/Tropical Mangrove Vegetation Above High Tide Level |
suitable |
resident |
| Marine Coastal/Supratidal |
Coastal Brackish/Saline Lagoons/Marine Lakes |
suitable |
resident |
| Marine Neritic |
Macroalgal/Kelp |
suitable |
resident |
| Marine Neritic |
Seagrass (Submerged) |
suitable |
resident |
| Marine Neritic |
Subtidal Loose Rock/pebble/gravel |
suitable |
resident |
| Marine Neritic |
Subtidal Rock and Rocky Reefs |
suitable |
resident |
| Marine Neritic |
Subtidal Sandy |
suitable |
resident |
| Marine Neritic |
Subtidal Sandy-Mud |
suitable |
resident |
| Wetlands (inland) |
Permanent Freshwater Lakes (over 8ha) |
major |
resident |
| Wetlands (inland) |
Permanent Freshwater Marshes/Pools (under 8ha) |
suitable |
resident |
| Wetlands (inland) |
Permanent Rivers/Streams/Creeks (includes waterfalls) |
suitable |
resident |
|
Altitude
|
0 - 400 m
|
Occasional altitudinal limits
|
|
Threats & impact
| Threat (level 1) |
Threat (level 2) |
Impact and Stresses |
| Agriculture & Aquaculture |
Annual & perennial non-timber crops / Agro-industry farming |
Timing |
Scope |
Severity |
Impact |
| Ongoing |
Majority (50-90%) |
Slow, Significant Decline |
Medium Impact: |
| Stresses |
|---|
| Ecosystem degradation, Ecosystem conversion |
|
| Agriculture & Aquaculture |
Annual & perennial non-timber crops / Scale Unknown/Unrecorded |
Timing |
Scope |
Severity |
Impact |
| Ongoing |
Minority (<50%) |
Slow, Significant Decline |
Low Impact: 5 |
| Stresses |
|---|
| Ecosystem degradation, Ecosystem conversion |
|
| Biological resource use |
Hunting & trapping terrestrial animals / Intentional use (species is the target) |
Timing |
Scope |
Severity |
Impact |
| Ongoing |
Majority (50-90%) |
Rapid Declines |
Medium Impact: |
| Stresses |
|---|
| Species mortality |
|
| Pollution |
Agricultural & forestry effluents / Herbicides and pesticides |
Timing |
Scope |
Severity |
Impact |
| Ongoing |
Minority (<50%) |
Slow, Significant Decline |
Low Impact: 5 |
| Stresses |
|---|
| Ecosystem degradation, Ecosystem conversion |
|
Utilisation
| Purpose |
Primary form used |
Life stage used |
Source |
Scale |
Level |
Timing |
| Food (human) |
Whole |
Adults and juveniles |
Wild |
Subsistence, National |
Non-trivial |
Recent |
| Pets |
Whole |
Adults and juveniles |
Wild |
International |
Non-trivial |
Recent |
Recommended citation
BirdLife International (2013) Species factsheet: Anas luzonica. Downloaded from
http://www.birdlife.org on 20/05/2013.
Recommended citation for factsheets for more than one species: BirdLife International (2013) IUCN Red List for birds. Downloaded from
http://www.birdlife.org on 20/05/2013.
This information is based upon, and updates, the information published in BirdLife International (2000)
Threatened birds of the world. Barcelona and Cambridge, UK: Lynx Edicions and BirdLife International, BirdLife International (2004)
Threatened birds of the world 2004 CD-ROM and BirdLife International (2008) Threatened birds of the world 2008 CD-ROM. These sources provide the information for species accounts for the birds on the IUCN Red List.
To provide new information to update this factsheet or to correct any errors, please email BirdLife
To contribute to discussions on the evaluation of the IUCN Red List status of Globally Threatened Birds, please visit BirdLife's Globally Threatened Bird Forums.
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